diff --git a/autobuild_mac80211_release/package/kernel/mac80211_dev/patches/subsys/mtk-0018-cfg80211-mtk-fix-early-return-in-cfg80211_stop_backg.patch b/autobuild_mac80211_release/package/kernel/mac80211_dev/patches/subsys/mtk-0018-cfg80211-mtk-fix-early-return-in-cfg80211_stop_backg.patch
new file mode 100644
index 0000000..d57273b
--- /dev/null
+++ b/autobuild_mac80211_release/package/kernel/mac80211_dev/patches/subsys/mtk-0018-cfg80211-mtk-fix-early-return-in-cfg80211_stop_backg.patch
@@ -0,0 +1,29 @@
+From 435bf8765d44b694b86a400fb128fcf6d72b8aa6 Mon Sep 17 00:00:00 2001
+From: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+Date: Thu, 27 Jul 2023 10:25:59 +0800
+Subject: [PATCH 18/19] cfg80211: mtk: fix early return in
+ cfg80211_stop_background_radar_detection
+
+Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+---
+ net/wireless/mlme.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
+index 57b9bde..c2cf8aa 100644
+--- a/net/wireless/mlme.c
++++ b/net/wireless/mlme.c
+@@ -1145,9 +1145,9 @@ void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev)
+ 		return;
+ 
+ 	rdev_set_radar_background(rdev, NULL);
+-	rdev->background_radar_wdev = NULL; /* Release offchain ownership */
+ 
+ 	__cfg80211_background_cac_event(rdev, wdev,
+ 					&rdev->background_radar_chandef,
+ 					NL80211_RADAR_CAC_ABORTED);
++	rdev->background_radar_wdev = NULL; /* Release offchain ownership */
+ }
+-- 
+2.18.0
+